Telescope gun sight mounting



Mam}! 1951 P. s. WILLIAMS TELESCOPE GUN SIGHT MOUNTING June 15, 1946 Filed Patented Mar. 13, 1951 UNITED STATES TENT OFFICE TELESCOPE GUN SIGHT MOUNTING Platt S. Williams Long Beach, Calif., assignor of one-third to Francis P. Cleary, Long Beach,

Calif.

4 Claims.

This invention relates to and has for an objcct the provision of a mounting for telescopic gun sights, which is adapted for use on lever type guns, such as the Winchester and Marlin, as well as to bolt type guns such as the Springfield, Remington and others, but is preferably adapted to side ejection types of guns. When using a telescope aiming may be effected by lining up cross hairs in the scope with the target, all necessary settings for Windage etc. being provided for by adjustment of the eye piece of the scope.

An important object is to provide a telescopic sight mounting which is readily attachable to and detachable from a gun carrier without impairing the alinement of the telescopic si ht relative to the axis of the bore of the barrel when the telescope is again positioned on the gun.

Another object is to provide a mounting for telescopic sights which includes a base plate adapted to be attached to a face of a gun carrier and a sight holder adjustable on and detachably supported on the base plate, so that when the sight is attached to or detached from the base plate it is not necessary to remove and reattach the base plate, and. thereby occasion a possibility of misalinement of the sight.

A further object is to provide a lock between the base plate and the sight holder, which is manually operable for releasing and locking the sight holder.

Other objects may appear as the description of my improvements progresses.

In the accompanying drawing, I have shown a preferred form of sight mounting, in which:

Fig. l is a perspective view of the telescope sight mounting shown in operative position on a gun;

Fig. 2 is a side view of the mounting detached from the gun;

Fig. 3 is an end view of the mounting;

Fig. 4 is a top plan view of the same;

Fig. 5 is a perspective view of the mounting base; and

Fig. 6 is a perspective view of the telescope sight holder.

My improved telescope gun sight mounting includes a base A and a telescope holder B, which are arranged for detachable connection and a lock C for supporting, the holder on the base, so that a telescopic sight D may be accurately alined with respect to the axis of the bore of a gun G.

Usually the receiver F of a gun has a side face I, which may be flat or curved, and base A is formed with a depending flange 2 having a flat outer surface 3 and either a flat or curved inner surface 4 adapted to conform to the face I of the carrier. Base A also has an upper portion 5, which extends inwardly over the top of the carrier when the base is afiixed to the carrier as by means of screws 6 extended through holes 'I' in flange 2. Holder B is detachably supported on portion 5 of base A, as hereinafter described.

Holder B is formed with a longitudinal bar b having sockets 8, 8 at its ends, which are split at 9, and drilled at III to receive screws II by means of which the sockets may be clamped around a telescopic sight D, as shown in Fig. l. The top 5 of base A has a pin I2 equi-distant from the ends of the base which seats in an accurately fitting recess I3 in the bottom of holder B (Figs. 5 and 6) so that the holder may be pivotally held on the base. The bottom of the holder is formed with convex grooves I4 and convex ribs I5, which are complementary to concave ribs I6 and concave grooves I'I, respectively, on the top 5 of base A. The curvature of the grooves I4 and I1 and ribs I5 and I 6 is such that when the holder is rotated on the base it will be clamped and locked against displacement from the base, except by rotation. Thus, when the bar b of the holder is alined with top 5 of the base, the sight D will be accurately parallel to the longitudinal axis of the barrel of the gun, but when the holder is swung into the position shown in broken lines in Fig. 4, the ribs I6 will be free of grooves I4 and the ribs I5 will be free of the grooves I I and the holder may be lifted oil the base.

However, in order to prevent the accidental detachment of the holder and a consequent movement of sight D out of operative position. I provide a lock C which is carried by holder B and includes a bolt I8 slidable in a bore I9 drilled in the bar B and engageable in a seat 2!] formed half in a portion I6 of the base and half in a mating portion of the holder. Bolt I8 is operated by means of an actuator 2 I, which slides over face 3 of the base and is connected with bolt I8, as by means of a pin 22, which moves in an elongated slot 23 and may be frictionally held in locked or unlocked position.

In operation and use, the unit is afiixed to the side of a gun carrier to which it is adapted and in such a position that the axis of a telescopic sight will aline with the longitudinal axis of the gun bore. To such end the carrier F is drilled and tapped to receive the attaching screws 6.

3 The holder B is then mounted on the base with the sight D either previously or late attached thereto and, when locked in position in proper alinement, will always be in condition for use. Preferably, top 5 of base A has a stop 25 and bottom of holder B has a recess 26 into which said stop fits for limiting the rotation of the holder on the base to a point of accurate alinement of the telescope sight. Thus, as in Fig. 4, when the holder is attached to the base it will be rotated in a clockwise direction to an extent limited by stop 25, and when the holder is detached, it is reversely rotated. It is important to note that the removal of the holder from the base or the sight from the holder Will not affeet or impair the alinement of the sight.

Iclaim: 7 V o 1. In a rifle telescope sight mount having a rigid longitudinally extending base member secured to one side of the receiver of the rifle and a telescope holder having a body portion adapted to be detachably secured to the base member providing a two part mount: inter fitting parts on said base member and said holder body portion effective when the holder is positioned on the base to restrict movement of the holder to swinging in a plane transverse to the top of the base; and a single locking member carried by one of said parts of the mount and movable longitudinally of the base member into engagement with the other part of the mount only when the two parts are accurately aligned to prevent any relative movement of the parts.

2. In a rifle telescope sight mount having a rigid longitudinall extending base member secured to one side of the receiver of the rifle and a telescope holder having a body portion adapted to be detachably secured to the base member providing a two part mount: interfitting parts on said base member and said holder body portion effective when the holder is positioned on the base to restrict movement of the holder to swinging in a plane transverse to the top of the base; a bolt slidably mounted in a longitudinally extendingbore in one member and adapted to be projected longitudinally of the base member into i matching grooves formed in contacting surfaces of the two parts and forming, when the parts are accurately aligned, a bore closely fitting said bolt; and means projecting from the bolt to the exterior of the part in which it is mounted whereby the pin may be projected into the bore to lock the parts against movement.

3. A rifle telescope sight as set forth in claim 1, and in addition comprising stop means carried by the parts of the mount and arranged to be engaged when the telescope holder has been brought into alignment with the base member.

4. A rifle telescope sight as set forth in claim 1, and in addition comprising stop means carried by the parts of the mount and arranged to be engaged when the telescope holder has been brought into alignment with the base member, said stop means comprise a solid projection carried by one part and a recessformed in the other part of the mount in which said projection is closely nested when the part carrying the recess is accurately aligned with the part in which the recess is formed to prevent further movement of the parts and enable operation of the locking member to be effected.

PLATT S. WILLIAMS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Germany 1903 

